At the start of the level, go to the right until you reach a yellow pipe. Enter it and right before the Demon Wall Mini Boss pops up, Run left and you will be warped to a room with the Dragon Orb and the Secret Exit above it. Just defeat the Demon Wall if you don't want the Orb and just the Secret Exit.

The background from the first part and Ludwig Fight is from Kirby's Dream Course, the second part is from Donkey Kong Country 2: Diddy Kong's Quest, and the part with the spikes is from Mega Man 3, while the area with rainbow platforms also belongs to Mega Man 3.